Haldoupis, C. I.; Nielsen, E.: Results on relative scattering cross section of 140 MHz auroral backscatter. Journal Geophysical Research 89, p. 2305 (1984)
Haldoupis, C. I.; Nielsen, E.; Ierkic, H. M.: STARE Doppler spectral studies of westward electrojet radar aurora. Planetary and Space Science 32, p. 1291 (1984)
Nielsen, E.; Haldoupis, C. I.; Fejer, B. G.; Ierkic, H. M.: Dependence of auroral power spectral variations upon electron drift velocity in the eastward electrojet. Journal Geophysical Research 89, pp. 253 - 260 (1984)
Haldoupis, C. I.; Nielsen, E.: Simultaneous geomagnetic and radio auroral observations. Journal of Atmospheric and Terrestrial Physics 45, p. 543 (1983)
Haldoupis, C. I.; Nielsen, E.; Goertz, C.: Experimental evidence on the dependence of 140 MHz radar auroral backscatter characteristics on ionospheric conductivity. Journal Geophysical Research 87, p. 7666 (1982)
Haldoupis, C. I.; Nielsen, E.; Holtet, J. A.; Egeland, A.; Chivers, H. A. J.: Radar auroral observations during a burst of irregular magnetic pulsations. Journal Geophysical Research 87, p. 1541 (1982)
The dwarf planet is a bizarre, cryovolcanic world. However, the organic deposits discovered on its surface so far are unlikely to originate from its interior.
The Uranian magnetic field is more expansive than previously thought, according to newly analyzed data from Voyager 2, making it easier to search for moons with oceans.
The Planetary Plasma Environments group (PPE) has a strong heritage in the exploration of planetary magnetospheres and space plasma interactions throughout the solar system. It has contributed instruments to several past missions that flew-by or orbited Jupiter (Galileo, Cassini, Ulysses). The PPE participates in the JUICE mission by contributing hardware and scientific expertise to the Particle Environment Package (PEP).